I would like to know why the V10 engine is scarce.I also noticed that cars using the V10 engine like BMW M5 opted for V8 in the later model which for me is sad

The same reason some vehicle models ordinarily made for V6 opted for I4 turbocharged engines. Same or similar power output and performance but lower fuel consumption and carbon emission.

Observer007:
The same reason some vehicle models ordinarily made for V6 opted for I4 turbocharged engines. Same or similar power output and performance but lower fuel consumption and carbon emission.

Yeah, you make sense also V10 is heavier too.
But imagine turbocharging the V10 engine
Mad sound and power, forget fuel consumption because you know what you bought

Sawzer:



Yeah, you make sense also V10 is heavier too.
But imagine turbocharging the V10 engine
Mad sound and power, forget fuel consumption because you know what you bought

The only reason V10 engines are minimal is because due design and balancing of power it's only good for high revs, it's easier to slap in a V12 since its just 2 V6 engine placed in an angle to each other. The same reason why we also have very few 5 cylinder engine makers I think only volvo still stands in that 5 category VW/Audi don run

That high rev is a mad advantage means you change gear less often and can utilise more power at a particular band, just like the launch control of the Nissan GTR @ 4500rpms from stationary position

I think they got scarce because technology got better. Fewer cylinders can now produce same or even better power / torque output.

Big engines like the V10 are going out of style because of increasingly stringent emissions standards. It's a shame, really, since there's no replacement for displacement.